There definitely needs to do some investigation as to how the block drive is constructed.
I have assumed the 6 brick on edge at the side are level. and the road level is falling. both sides of the entrance
If the car is level the block driveway is falling. and the high front may have a use......
There is nothing there that can't be sorted level wise.
Before the cowboys invite themselves in, take out a line of 6 blocks front to back -- First have a few bags of chippings, sand or cones /something to fill, or cover the resulting hole if blocks are not put back, or the postman, or anybody may trip over and sue you. don't leave a trap with it open. You can easily remove any sand etc later.
or simply put the blocks back.
When the blocks are out and any sand, or other foundation such as tarmac, or stones whatever etc is seen and measured as to depth below top of existing blocks and also recorded with your camera with a long straight piece of wood and with long spirit level if you have it and lay this as a level indicator along side the top of your mini trench on the remaining adjacent blocks as a level indicator of the fall of your driveway with perhaps a standard Brick laid flat, or on edge one end of long timber which you lay level to give also a visual indication to measurement -
Use a old Bread knife or similar from a charity shop to cut around your first block as it will be solid with soil and sand probably you might need to drill it with a hole to put in a lifting bolt for the first one you can easily fill the hole or lift it again later