Today while taking my 89 year-old mother for her Covid Vaccine a truck from this company began tailgating me on the Fairfax County Parkway. I was going a few miles over the limit (53mph) in the right lane when the truck continued to approach until it was approx. 1 car-length behind. I slowly reduced speed to the limit (no "brake check") hoping the driver would move to the left lane. He pulled even closer!, before finally jumping to the left lane. A mile or so late, he cut back in front of me with very little clearance. I exited the parkway. This was both unprofessional and dangerous. Suggest avoiding this company, if for no other reason, to limit your potential liability exposure.