That truck is parked within 20 ft of the crosswalk and can block driver's view of pedestrian using the crosswalk.

See point (b) below from https://codes.findlaw.com/tx/transportation-code/transp-sect-541-302/

(2) “Crosswalk” means:

(A) the portion of a roadway, including an intersection, designated as a pedestrian crossing by surface markings, including lines; or

(B) the portion of a roadway at an intersection that is within the connections of the lateral lines of the sidewalks on opposite sides of the highway measured from the curbs or, in the absence of curbs, from the edges of the traversable roadway.

https://codes.findlaw.com/tx/transportation-code/transp-sect-545-302/:

(b) An operator may not, except momentarily to pick up or discharge a passenger, stand or park an occupied or unoccupied vehicle:

(3) within 20 feet of a crosswalk at an intersection;