Higher-resolution versions of the images of the lander, the backshell and parachute, and the heat shield are all available. These will not be the best images HiRISE takes. I'm sure they'll target the landing site regularly over time, to watch how the blast effects of the landing rockets fade with time and wind.

I was prepared for this moment with a set of base maps. The best image of the landing location that was taken before landing is ESP_036761_1845. By good fortune, the lander fell near the center of the swath, which means HiRISE got the region in color before the landing. Here's the landing location in that HiRISE image: