LS rented a vehicle when she collected her husband at the airport (Tues, Jan 28) --day after she reported GS missing.
LS returned the vehicle about 27 hours later (driving 900+ miles). LS provided Crimeonline with copy of Budget receipt confirming same. (See link below).
I don't believe LE had confiscated any family vehicles at this time (i.e., GS still considered a runaway). We also know that LS left with GS in AS Nissan Frontier truck on Monday (Jan 27) when he disappeared.
LS excuse to look for GS in a rented vehicle he didn't recognize so lame. More likely LS used rental to relocate GS body or drove a distance to hand GS body off to another who also could have transported his body to Florida. MOO
Gannon Stauch: Stepmom explains rental car as search for missing Colorado boy continues [EXCLUSIVE PART 2]
ETA: Searching for confirmed details of additional rental vehicle by LS after Jan 29.